list_connected_devices
列出当前已连接的全部设备:{ address, deviceKind, connected }。
This record as markdown: /tools/0xnullai-dg-mcp/list-connected-devices.md
What list_connected_devices does on DG-MCP
AI agents call list_connected_devices to retrieve information from DG-MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why list_connected_devices is rated Low
This is a straightforward information retrieval operation that queries the current state of connected devices. It has no side effects, does not modify device state, execute commands, or cause destructive changes. It simply enumerates existing connections, making it a Read category tool. Severity is low because misuse (e.g., an AI listing devices repeatedly) would not cause harm beyond minor resource consumption.
From the tool's definition Tool name 'list_connected_devices' and description '列出当前已连接的全部设备' (list all currently connected devices) indicates querying/retrieving state information without modification or side effects.
Attacks that exploit this kind of access
The rule that runs list_connected_devices safely
PolicyLayer is an MCP gateway: it sits between your AI agents and DG-MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_connected_devices, this is the rule to start with:
list_connected_devices is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect DG-MCP, apply this rule, and every list_connected_devices call is checked against it from then on.
Questions about list_connected_devices
列出当前已连接的全部设备:{ address, deviceKind, connected }。. It is categorised as a Read tool in the DG-MCP MCP Server, which means it retrieves data without modifying state.
Register the DG MCP server in PolicyLayer and add a rule for list_connected_devices: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches DG-MCP. Nothing to install.
list_connected_devices is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_connected_devices rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for list_connected_devices. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
list_connected_devices is provided by the DG MCP server (0xnullai/dg-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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